Home / 45,137.98-67,662.37-21,403.90

Finding the Fourth Proportional to 45,137.98, 67,662.37 and 21,403.90

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Solution

The fourth proportional to 45,137.98, 67,662.37 and 21,403.90 is: 32,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,137.98 : 67,662.37 = 21,403.90 : x
  2. Step 2: Convert to fraction form
    45,137.98/67,662.37 = 21,403.90/x
  3. Step 3: Cross multiply
    45,137.98x = 67,662.37 × 21,403.90
  4. Step 4: Simplify right side
    45,137.98x = 1,448,238,601.24
  5. Step 5: Solve for x
    x = 1,448,238,601.24/45,137.98
  6. Step 6: Final answer
    x = 32,084.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.